Challenger Series brings in a new concept called CTMK better known as “Challenge the Mighty King” where a Challenger team is chosen through the community voting system to compete with the top team called the “Mighty King”.Cooler Master Challenger Series will be played between top 8 teams that qualify from an Open Online Qualifier. The Winner of the Open qualifier becomes the “Mighty King” for the first week. Week over week new Challengers emerge to take on the Mighty King. Hence, the Mighty King has to win every Bo3 match that is played weekly to retain the top position throughout.